Regular Google Apps Script Community contributor Bruce Mcpherson has published a list of all the Google Apps Script libraries he’s developed since 2012. The list includes links to the source repositories and if you spot a library you like the sound of you can search for more information on Bruce’s Desktop Liberation site .
Source: List of shared Apps Script libraries · Issue #31 · brucemcpherson/desktopliberation
Member of Google Developers Experts Program for Google Workspace (Google Apps Script) and interested in supporting Google Workspace Devs.
Inspired by this I’ve started pulling together all the Apps Script libraries I can find into one place: